Erko AS 12-120/1 Sealed Aluminum Ring Terminal for 12-120mm² Conductors

The Erko AS 12-120/1 is a professional-grade sealed aluminum ring terminal engineered for reliable electrical terminations of aluminum conductors. Designed to accommodate a wide cross-section range from 12 to 120 mm², this terminal provides a robust and secure connection suitable for demanding electrical infrastructure. Its sealed construction is specifically developed to prevent oxidation and protect the connection from environmental factors, ensuring long-term performance in industrial applications.

Advantages

The primary benefit of the Erko AS 12-120/1 terminal is its specialized design for aluminum conductors, which effectively mitigates the risks associated with aluminum-to-copper or aluminum-to-terminal contact. The sealed nature of the terminal acts as a barrier against moisture and atmospheric contaminants, which is essential for maintaining low contact resistance over time. Its versatile sizing capability allows for efficient inventory management, while the high-quality aluminum alloy construction ensures excellent conductivity and mechanical strength under load.

Suitable for

• Industrial electrical installations
• Power distribution systems
• Outdoor electrical cabinets and enclosures
• Heavy-duty cable management systems

When it may not be suitable

This terminal is specifically designed for aluminum conductors and may not be suitable for applications requiring pure copper wiring without appropriate transition adapters. It is also not intended for high-vibration environments where specialized locking mechanisms are required beyond standard ring terminal fastening.

Key specifications

• Conductor cross-section range: 12-120 mm²
• Material: High-conductivity aluminum alloy
• Design: Sealed ring terminal
• Compatibility: Aluminum conductors

How to use

To install the Erko AS 12-120/1, ensure the aluminum conductor is properly stripped to the required length without damaging the individual strands. Insert the conductor fully into the terminal barrel. Use a professional-grade hydraulic or mechanical crimping tool specifically calibrated for aluminum terminals to ensure a gas-tight connection. Once crimped, secure the ring terminal to the busbar or contact point using an appropriately sized bolt and washer, ensuring the connection is tightened to the manufacturer's specified torque settings.

What to consider before purchase

• Verify the cross-section of your aluminum conductor matches the 12-120 mm² range.
• Ensure you have access to a compatible crimping tool for aluminum terminals.
• Check the bolt size of your connection point to ensure compatibility with the ring hole.

Usage recommendations

Always use an appropriate contact grease when terminating aluminum conductors to prevent oxidation and ensure optimal electrical conductivity throughout the lifespan of the installation.